In 1883 Dexter Rumsey purchased the house and gave the the use of the house as a wedding gift for his daughter, Mary Grace, upon her marriage to Ansley Wilcox, a young Buffalo lawyer.

Rumsey had given another house, 675 Delaware Avenue, as a similar wedding present to his daughter Cornelia who had married Wilcox in 1878. When Cornelia died, Wilcox married her younger sister, Mary Grace

Source: "A History of the City of Buffalo," published by the The Buffalo Evening News, 1908